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All Journal Journal of Mathematics Education and Application (JMEA) Ihsan: Jurnal Pengabdian Masyarakat
Khair, Alfath
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Religion Humanities Economics, Econometrics & Finance Education Mathematics Social Sciences

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Peningkatan Pemahaman Kalender Hijriah Global Tunggal kepada warga Muhammadiyah Cabang Medan Helvetia Hidayat, Muhammad; Rakhmadi, Arwin Juli; Raisal, Abu Yazid; Khair, Alfath
IHSAN : JURNAL PENGABDIAN MASYARAKAT Vol 6, No 1 (2024): Ihsan: Jurnal Pengabdian Masyarakat (April)
Publisher : University of Muhammadiyah Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/ihsan.v6i1.19118

Abstract

Saat ini Jamaah Warga Muhammadiyah Cabang Medan Helvetia belum begitu memahami Kalender Hijriyah Global Tunggal (KHGT), baik dari segi konsep, argumentasi dan Implementasinya. Sementara itu Muhammadiyah sudah akan segera memberlakukan KHGT oleh karena itu pengabdian ini penting dilakukan agar masyarakat Indonesia, khususnya warga persyarikatan dapat memahami KHGT dengan baik. Metode yang akan digunakan dalam pelaksanaan program ini dimulai dari tahap persiapan program, tahap pelaksanaan program, dan tahap evaluasi program. Hasil pengabdian menunjukkan bahwa warga yang sebelumnya tidak memahami konsep, argumentasi dan implementasi dari KHGT dan setelah dilakukan kegiatan pengabdian ini para warga dapat memahami dengan baik konsep, argumentasi dan implementasi KHGT hal tersebut dibuktikan dengan mampu menjawab contoh kasus yang diberikan.
Calculations Using Rubu' Mujayyab to Determine the Beginning of Maghrib and Isha Times Hidayat, Muhammad; Abidin, Ahmad Zainal; Fathi, Muhammad Alya; Khair, Alfath
JMEA : Journal of Mathematics Education and Application Vol 3, No 1 (2024): Februari
Publisher : JMEA : Journal of Mathematics Education and Application

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/jmea.v3i1.18857

Abstract

In determining the start of prayer times, in this case the Maghrib and Isha prayer times, there are several methods that can be used, one of which is using instruments. Apart from calculators and computers, the astronomical instrument that can be used is the Rubu' Mujayyab, which functions as an angle calculating tool. Rubu' Mujayyab is a tool in the shape of a quarter circle which is used to calculate geometric functions which are very useful for projecting the circulation of celestial bodies on a vertical circle. The research methods used are experimentation and direct testing. The results of this research show that Rubu' Al-Mujayyab can calculate prayer times, especially Maghrib and Isha times, using the steps described and the results are close to current modern calculations.
Co-Authors Abu Yazid Raisal Ahmad Zainal Abidin Arwin Juli Rakhmadi Fathi, Muhammad Alya Muhammad Hidayat